Stock-Based Compensation Plans (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Stock Based compensation expense
Stock-based compensation effect on income before taxes	$ 50,157	$ 38,641	$ 142,732	$ 109,194
Cost of Revenues [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	2,961	2,366	8,386	6,650
Research and Development [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	31,543	22,352	86,119	63,329
Selling, General and Administrative Expenses [Member]
Stock Based compensation expense
Stock-based compensation effect on income before taxes	$ 15,653	$ 13,923	$ 48,227	$ 39,215
Equity Plan 2007 [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized			6.0
Employee Stock Purchase Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized			2.0